If I connect the solenoid using resistor, the car boost for about 0.6bar and there are also no changes after reflashing. Looks like Tactrix BCS doesn't work at all with resistor (I have the same effect if I disconnect power from it at all). Resistance of stock BCS on this Evo5 is about 72 ohms, the Tactrix BCS is 24 ohms, so I decided to use 47 ohms resistor on the ground wire.